Piston-rod for steam-pumps.



No. 636,668. Patented Nov. 7, I899.

P. S. H OUGHTON. PISTON nob FOR STEAM PUMPS.

(Application filed June 16, 1899.)

(No Model.)

WITNESSES m: Moan-s FUERS cu. pnorouwo. wnsumc-rou, n. c,

UNITED STATES PERRY SP'EELMAN HOUGHTON, OF LINDSEY, PENNSYLVANIA.

PISTON-ROD FOR STEAM-PU M PS.

SPECIFICATION formingpart of Letters Patent No. 636,668, dated November 7, 1899. Application filed June 16, 1899. Serial No. 720,795. (No model.)

To all whom it may concern.-

Be it known that I, PERRY SPEELMAN I-IOUGHTON, of Lindsey, in the county of J efferson and State of Pennsylvania, have invented a new and Improved Piston-Rod for Steam-Pumps, of which the followingis afull, clear, and exact description.

The object of the invention is to provide a new and improved piston-rod for stearn-pumps which is simple and durable in construction, very cheap to manufacture, and not liable to break, bend, or spring when in use.

The invention consists of novel features and parts and combinations of the same, as will be fully described hereinafter and then pointed out in the claim.

Reference is to be had to the accompanying drawing, forming a part of this specification, in which the figure is a sectional side elevation of the improvement as applied.

Pistonrods as now employed in steampumps are usually made of solid brass or bronze, and hence are quite expensive and are liable to bend or spring when the pump is is working heavily.

In order to cheapen the cost and to strengthen the piston-rod, I provide a steel or iron core Ain the form of a solid rod cast in the brass or bronze piston-rod proper, B, to

stiffen the piston-rod and to prevent it from bending upon the push-stroke of the pump. The core A is formed with annular recesses A for the brass or bronze metal of the rod proper, B, to fill when casting the piston-rod to prevent the brass from breaking and pulling on the iron or steel core upon the draw-stroke of the pump. The ends A of the core are preferably pointed, as shown in the drawing, to permit of readily centering the core when casting the piston-rod, so as to bring the core perfectly true in the center of the rod B.

PERRY SPEELMAN HOUGH'lON.

Witnesses: v

JAMEs V. MURRAY, ROGER WELSH. 

